package com.xue.my;

import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;


/**   
 * @Title: Test1.java 
 * @Package day1 
 * @Description: TODO
 * @author jimmy lovelyxuehanxin@163.com   
 * @date 2013-6-25 ����8:57:13 
 */
public class Test1 {
	public static void main(String[] args) {
//		Class<?>[] cs = Father.class.getClasses();
//		System.out.println(cs + "....." + cs.length);
//		for(Class c:cs){
//			System.out.println(c.getName());
//		}
//		Annotation[] ans = Person.class.getAnnotations();
//		for(Annotation a:ans){
//			Method[] ms = a.getClass().getMethods();
//            for(Method m:ms){
//            	System.out.println(m.getName());
//            }
//		}
		new HashSet().retainAll(Collections.emptySet());
		
	}
}
